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https://issues.apache.org/jira/browse/HBASE-3489?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13587573#comment-13587573
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Dave Latham commented on HBASE-3489:
------------------------------------
The ReplicationLogCleaner prevents any oldlogs from being cleaned if
replication is enabled in the config (hbase-site.xml) but stopped (via
stop_replication). That caused this issue for us, and my guess is it might be
behind other people's cases too.
> .oldlogs not being cleaned out
> ------------------------------
>
> Key: HBASE-3489
> URL: https://issues.apache.org/jira/browse/HBASE-3489
> Project: HBase
> Issue Type: Bug
> Affects Versions: 0.90.0
> Environment: 10 Nodes Write Heavy Cluster
> Reporter: Wayne
> Attachments: oldlog.txt
>
>
> The .oldlogs folder is never being cleaned up. The
> hbase.master.logcleaner.ttl has been set to clean up the old logs but the
> clean up is never kicking in. The limit of 10 files is not the problem. After
> running for 5 days not a single log file has ever been deleted and the
> logcleaner is set to 2 days (from the default of 7 days). It is assumed that
> the replication changes that want to be sure to keep these logs around if
> needed have caused the cleanup to be blocked. There is no replication defined
> (knowingly).
>
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